Architecture that will last – that sounds as if you are building for all eternity. Do you have no interest in innovation?
Gübeli: I'm not interested in innovation at all costs. Tradition is more important to me. You can't reinvent the wheel. Architecture and urban planning should focus on ensuring that things function as well as possible. It's no coincidence that people like to live in older buildings. They want high ceilings and good lighting. We don't need a revolution; we need to work with existing concepts in a way that makes sense.
Züst: It's also important to remember that structures that are built to last are much more sustainable in terms of their environmental impact.
So, do you measure success by whether architecture will endure over the long term?
Gübeli: Whether a solution works becomes clear over an extended period of time. The proportions of a room need to be such that it can be used for a variety of purposes. When it comes to urban planning: If a building complex is vital and there are no vacancies, that shows that it is in harmony. It's about certain simple measures – but it's also about more than that.
Gübeli: I'm thinking of the economic aspect. We need to provide housing that people can afford. It's important to consider the perspective of the people who will eventually live in a building, and not just what we, as architects, find pleasing. We shouldn't focus all our energies on making a building incredibly innovative or special. Instead, we need to be reasonable, employ solid craftsmanship, and be guided by clear ideas. As architects, we keep future users in mind.
For many tenants, a home's location is the most important consideration.
Gübeli: Yes, that's exactly right. Another crucial aspect is how buildings are integrated into the urban space – which brings us to urban planning.
In your efforts to build in a way that accommodates people's needs, you're guided by the principles of urban planning.
Züst: Of course. And that takes us back to your opening question. If you want to know how living and working can occupy the same space alongside and with one another, you need to look at more than just how the building and the rooms are designed.
Equally important is whether the city is structured in a way that allows people to live and work in the same environment. Think of the garden cities1 in post-war housing developments, which were designed to serve only as residential areas. People living there had to commute long distances to work. That was not a successful concept.
So, what will allow urban residents to live and work in the same place?
Gübeli: It depends on where a building is located. In the Cosmos project in Dübendorf, on the outskirts of the greater Zurich region, we thought it was important to make the ground level a lively place by incorporating appropriate amenities, such as common areas as well as small businesses, neighborhood shops, and cafés that are also open to non-residents. The quality of the building is reflected in the vitality of the ground level. That brings people out of their apartments so they can work in other places than at home.
Züst: The Schulstrasse 44 project, on the other hand, is located in the heart of a very urban part of Oerlikon. The high-rise building is directly connected to the train station and the market square. It will include a hotel, a restaurant, offices, and even a terrace that is open to the public. All of these elements help integrate it into the city. The restaurant and the commercial businesses will make the ground level a lively place.
What about urban density?
Züst: When increasing density, we use elements of urban design that enable as many people as possible to share the same space – such as high-rise buildings. These buildings allow us to "stack" people and types of use vertically. Living and working can take place simultaneously.